Carbureter.



A. M. SANBORN'.

v GARBURETER. -APPLIGA.TI01I FILED MAY 11, 1912.

1&929530 Patented Apt 14, 1914 WITNESSES INVENTOR a y SHNBOIFM BY k l vm %Qa ATTORNEY;

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AUGWETUS ltd. Eidliffil'llititl, Hill SELQHFGIELD UNIVERSITY.CAhIFQItNIA.

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Application La saiectficetton c1 Ite'ttcrs .Pstent.

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To all whom it may concave:

Be it known that l, itucti's'tuc M. SAN- BORN, a citizenof the UnitedStates, and resident of Stanford University, nty of Santa Clara, andState of GallLtoriua have invented certain new and useful lmpsovementsin Oarbureters, oi which the following is a specification.

The invention relates to devices for vaporizing liquids and particularlyto carburetors which are used in connection with internal. combustionengines for vaporizing hydrocarbons.

The object of the invention. is to provide a carbureter in Which thehydrocarbon is mechanically projected into the air current.

Another object of the invention is to provide a carbureter in which thehydrocarbon is projected in a circumferential into the air current.Another object of the invention vide a carburetei' in which the i to prol oi the hydrocarbon is positive and vet es with the vide; a carburetorwhich is eiiicient in opera tion which eliminates the use of the needlevalue.

The invention possesses other tag e ous ieatiu'es, which, with the to golg will be set forth at length in the following descriptionwhere I shalloutline in full that form of the invention selected 1F illustration inthe accompanying dra' which illustrates one form. of the curtail: i" ofmy invention partly in section.

The carburetor consists of cumin 2, preferably cylindrical in form,having; 2:1.81'7' tures 8 in the top and bottom Wells tner-eof to allowthe passage of air thvethi'ough. These apertures are arrange teimedictebetween the center and pe cry of the top and bottom Walls, therebylining solid portions at the center. Secured the can ing, or formedintegral therewith is the cap 4 provided with the customary vslve forregulating the How of the air theiethrough and with a flange 5 by meansof which the carburetor is attached to the manifold oi' the engine.

Arranged within the casing 2 is a :tan 3 which is rotated by the 'aircurrent passing therethrough, the speed of the tan being proportionateto the speed of the air current. T he fan is fixed on a shaft 1 which ispro vided on its lower end with an inverted cone shaped element 8. Theupper end of the shaft 7 revolves in a hearing 9 centrally ranged in thetop Wall of the casing and apex of the cone bears in the bearing 12sic-- ranged in the boss 13 which is placed centrally in the bottom ofthe casing. The hydrocarbon supply pipe 14: connecting the earbureterwith the float chamber 15 is secured in said boss and the bearing 12 ispro-- vided with apertures 16 to permit the hydrocarbon to passtherethrough. The float chamber is arranged so that the hydrocarbonstands up in thesupply pipe to such height that the lower end or apexportion of the cone is immersed in. the liquid.

The cone is preferably formed with con cave sides flaring outward at thelease, which for convenience Will hereinafter he termed a conczve cone.The sides of the coneshaped element are spaced apart slightly from theinner edges of the boss oruppers end of the supply pipe so that thehydrocarhon may pass itapward over the face (it t cone.

As the fan and consequently the cone is revolved by the current of air,the hydro carbon is forced along the face of the cone through the mediumof capillary.attractiein and centrifugal force and is projected in aline circumferential spray into the air current where it readily becomesatomized. The base of the cone being a complete Cl?" cle, thehydrocarbon is projected from all parts thereof into the air current inthe form of a sheet of line spray. As the position of the valve isvaried to vary the speed and. power of the engine, the speed of the aircurrent is varied and consequently the supply of hydrocarbon thereto isvaried. The

hydrocarbon is therefore, positively fedinto the air current in a linecircumferential spray which readily atomizes and the amount ofhydrocarhou'projectcd into air current depends upon the speed oi?- thecurrent.

I claim:

1. In a carburetor, a fan arranged the path of and adapted to he rotatedby sir current and a conical shaped member partly immersed inhydrocarbon operatively connected to said fan and adapted proiect thehydrocarbon in a circumferential s way into the air current.

2. In a carburetor, a chamber provided With apertures for the passage ofair there- [ill fill? through, fan arranged in said chamber in E thepath of said air and adapted to be rotated thereby, an inverted coneconnected to said fan, the apex portion of said cone being adapted to beimmersed in the hydro:

carbon and the base of said cone lyingfor maintaining the hydrocarbon ata con sta-nt level in said pipe, an inverted concave tated by the aircurrent, connected to said cone.

In testimony whereof, I have hereunto set my hand at StanfordUniversity, Califi, this 4th day of May, 1912.

' AUGUSTUS M. SANBORN.

'I'n'presence of THOMAS SANBoRN, R. E. Ronnn'rs.

